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JEE Main 2010

Exam: JEE Main
Year: 2010
Subject: Chemistry
Chapter: Solid State

JEE Main 2010 · Chemistry · Solid State

Percentage of free space in cubic close packed structure and in...

Percentage of free space in cubic close packed structure and in body centred packed structure are respectively

Options

A $30 \%$ and $26 \%$
B $26 \%$ and $32 \%$
C $32 \%$ and $48 \%$
D $48 \%$ and $26 \%$

Correct answer

B. $26 \%$ and $32 \%$

Step-by-step solution

Packing fraction of cubic close packing and body centred packing are

0.74

and

0.68

respectively.

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